Home / 39,905.24-55,066.16-22,000.18

Finding the Fourth Proportional to 39,905.24, 55,066.16 and 22,000.18

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Solution

The fourth proportional to 39,905.24, 55,066.16 and 22,000.18 is: 30,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.24 : 55,066.16 = 22,000.18 : x
  2. Step 2: Convert to fraction form
    39,905.24/55,066.16 = 22,000.18/x
  3. Step 3: Cross multiply
    39,905.24x = 55,066.16 × 22,000.18
  4. Step 4: Simplify right side
    39,905.24x = 1,211,465,431.91
  5. Step 5: Solve for x
    x = 1,211,465,431.91/39,905.24
  6. Step 6: Final answer
    x = 30,358.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.